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Computes the intersection of arrays, compares data by a callback function


array_uintersect

(PHP 5)

array_uintersectComputes the intersection of arrays, compares data by a callback function

Description

array array_uintersect ( array $array1 , array $array2 [, array $ ... ], callable $data_compare_func )

Computes the intersection of arrays, compares data by a callback function.

Parameters

array1

The first array.

array2

The second array.

data_compare_func

The comparison function must return an integer less than, equal to, or greater than zero if the first argument is considered to be respectively less than, equal to, or greater than the second.

int callback ( mixed $a, mixed $b )

Return Values

Returns an array containing all the values of array1 that are present in all the arguments.

Examples

Example #1 array_uintersect() example

<?php
$array1 
= array("a" => "green""b" => "brown""c" => "blue""red");
$array2 = array("a" => "GREEN""B" => "brown""yellow""red");

print_r(array_uintersect($array1$array2"strcasecmp"));
?>

The above example will output:

 Array (  [a] => green  [b] => brown  [0] => red ) 

See Also



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